Ok I need help.
What does 4n - 4 mean?
What does 3n mean?
What does 2n + 1 mean?
What does n + 2 mean?
What does 4n - 4 mean?
What does 3n mean?
What does 2n + 1 mean?
What does n + 2 mean?
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Answers & Comments
I think you Haven't understand the letter" n "
it means the number of times which you can take
for example
4n -4
if u take n as 1 u will get 4 × 1 - 4
that is 0
in this way u can solve these questions
hope it helps